1 <?xml version="1.0" encoding="UTF-8"?>
3 <appendix id="requirements" xmlns:xi="http://www.w3.org/2001/XInclude">
4 <title>Zend Framework Requirements</title>
6 <sect1 id="requirements.introduction">
7 <title>Introduction</title>
10 Zend Framework requires a <acronym>PHP</acronym> 5 interpreter with a web server
11 configured to handle <acronym>PHP</acronym> scripts correctly. Some features require
12 additional extensions or web server features; in most cases the framework can be used
13 without them, although performance may suffer or ancillary features may not be fully
14 functional. An example of such a dependency is mod_rewrite in an Apache environment,
15 which can be used to implement "pretty <acronym>URL</acronym>'s" like
16 "<filename>http://www.example.com/user/edit</filename>". If mod_rewrite is not enabled,
17 Zend Framework can be configured to support <acronym>URL</acronym>'s such as
18 "<command>http://www.example.com?controller=user&action=edit</command>". Pretty
19 <acronym>URL</acronym>'s may be used to shorten <acronym>URL</acronym>'s for textual
20 representation or search engine optimization (<acronym>SEO</acronym>), but they do not
21 directly affect the functionality of the application.
24 <sect2 id="requirements.version">
25 <title>PHP Version</title>
28 Zend recommends the most current release of <acronym>PHP</acronym> for critical
29 security and performance enhancements, and currently supports
30 <acronym>PHP</acronym> 5.2.4 or later.
34 Zend Framework has an extensive collection of unit tests, which you can run using
35 PHPUnit 3.3.0 or later.
39 <sect2 id="requirements.extensions">
40 <title>PHP Extensions</title>
43 You will find a table listing all extensions typically found in
44 <acronym>PHP</acronym> and how they are used in Zend Framework below. You should
45 verify that the extensions on which Zend Framework components you'll be using in
46 your application are available in your <acronym>PHP</acronym> environments. Many
47 applications will not require every extension listed below.
51 A dependency of type "hard" indicates that the components or classes
52 cannot function properly if the respective extension is not available,
53 while a dependency of type "soft" indicates that the component may use
54 the extension if it is available but will function properly if it is not.
55 Many components will automatically use certain extensions if they are available
56 to optimize performance but will execute code with similar functionality in the
57 component itself if the extensions are unavailable.
60 <xi:include href="requirements-php-extensions-table.xml" />
63 <sect2 id="requirements.zendcomponents">
64 <title>Zend Framework Components</title>
67 Below is a table that lists all available Zend Framework Components
68 and which <acronym>PHP</acronym> extension they need. This can help guide you
69 to know which extensions are required for your application.
70 Not all extensions used by Zend Framework are required for every
75 A dependency of type "hard" indicates that the components or classes
76 cannot function properly if the respective extension is not available,
77 while a dependency of type "soft" indicates that the component may use
78 the extension if it is available but will function properly if it is not.
79 Many components will automatically use certain extensions if they are available
80 to optimize performance but will execute code with similar functionality in the
81 component itself if the extensions are unavailable.
84 <xi:include href="requirements-zendcomponents-table.xml" />
87 <sect2 id="requirements.dependencies">
88 <title>Zend Framework Dependencies</title>
91 Below you can find a table listing Zend Framework Components
92 and their dependencies to other Zend Framework Components. This
93 can help you if you need to have only single components instead
94 of the complete Zend Framework.
98 A dependency of type "hard" indicates that the components or classes
99 cannot function properly if the respective dependent component is not available,
100 while a dependency of type "soft" indicates that the component may need
101 the dependent component in special situations or with special adapters.
102 At last a dependency of type "fix" indicated that these components or classes are
103 in any case used by subcomponents, and a dependency of type "sub" indicates that
104 these components can be used by subcomponents in special situations or with special
110 Even if it's possible to separate single components for
111 usage from the complete Zend Framework you should keep
112 in mind that this can lead to problems when files are missed
113 or components are used dynamically.
117 <xi:include href="requirements-dependencies-table.xml" />